A light-rail commuter train draws 620 A of 700 V DC electricity when accelerating.
a) What is its power consumption rate in kilowatts?
b)How long does it take (in seconds) to reach 19.0 m/s starting from rest if its loaded mass is 5.30 ✕ 104 kg, assuming 95.0% efficiency and constant power?
c) Find its average acceleration. (Enter the magnitude in m/s2.)
d) Discuss how the acceleration you found for the light-rail train compares to what might be typical for an automobile.